Specific analysis of the working principle of the hydraulic cylinder

Specific analysis of the working principle of the hydraulic cylinder

Hydraulic cylinder is a device that converts liquid energy into mechanical energy, which usually consists of hydraulic cylinder barrel, piston, seals, hydraulic cylinder cover, oil port and oil hole. Through the pressure of the liquid in the cylinder barrel to generate force and movement, to achieve industrial machinery lifting, moving, pressing and other functions.

The working principle is to use a liquid as a transmission medium, through the transmission of the liquid in the closed pipe, the piston in it to exert force, so as to realize the movement of machinery. When the hydraulic cylinder needs to work, the pressure oil will enter and make the piston produce thrust. Under the action of the thrust, the piston moves in the axial direction. When the direction of the pressure oil changes, the piston will move in the opposite direction, allowing the fluid to flow out.

The principle of operation is based on Pascal's Law, which states that liquids are incompressible. The pressure of the liquid in the hydraulic cylinder is directly proportional to the force applied to the piston. This means that as the pressure of the liquid in the cylinder increases, so does the thrust produced. The reverse is also true; when the pressure of the liquid decreases, the thrust decreases accordingly. Pistons are designed according to the size of the mechanical demand, and usually the larger the diameter of the piston, the greater the force produced.